Pilot Controlled Flow Restrictor Valve Stainless Steel 304 Control Pipe

Ductile Iron Flow Control valve Stainless Steel Pilot Blue Colored Nylon Reinforcement Diaphragm

A400 Flow Rate Control Valve is activated by line pressure and controlled by a pilot valve. The pilot includes a springloaded membrane. An orifice plate is installed either downstream or upstream of the A400. The orifice size is prepared in advance to suit the specified required flow rate.

The head loss across the orifice is proportional to flow rate through the A400 valve. This head loss is transferred to the opposite sides of the pilot's membrane, which moves upward or downward accordingly. These movements open or close the inner ports of the pilot valve, directing the line pressure to control the A400.

Service Fields:

For water system, irrigation system.

Technical Data:

Consult Factory for other applications
IP68 for water resistance
Comply with BS EN 1074-5, ISO 5208, BS EN 12266-1, BS EN 558-1

Materials And Dimension

DN50-DN350

DN400-DN800

Alpine Flow Control (SuZhou) Co.,Ltd with major focus in the water valve design and manufacturing. The Management staff have over 30 years experience in the water valve design and manufacturing, combined with the high-tech electronics manufacturing experience of multi-national listed companies. This unique combination of traditional and high-tech industry management experience and skills have given us an advantage over the traditional valve manufacturer. More than 40% of our staff are technical staff with knowledge and experience in valve and mechanical design/manufacturing...

Proven and supported by on-going quality and reliability test. AFC has built it’s own in house reliability test laboratory to ensure that our products not only meet the international quality and reliability test specification such as the EN-1074-1/2 T-key and R-key test, but also comply to various international valves standards and specifications.

We already achieved WRAS certificate in 2011, and obtained FM approval in early of 2012,
and UL for gate valve. Today, we have got many international famous certificate for drinking water such as WRAS, NSF, AS, CE on certain products, and our product range has expended to double eccentric butterfly valve, rubber disc check valve ,non-slam check valve, both clean water & sewage water air valve, hydraulic control valve and penstock and we always focus on water system valves.

In 2018 year, our big plan is developing pressure management valves which has been proved to be a very helpful tool and economic way to save the leakage rate with limited investment and get a fast return in couple months and power savings

In addition, we have a special project team to focus on custom design and special requirement

Our Mission :
Be the market leader in Water Valve Flow Control
Company culture :
Technology through Innovation
Quality product and service through Quality people
Business growth through Cohesive partnership